Package org.h2gis.functions.spatial.mesh

Class ST_Delaunay

java.lang.Object
org.h2gis.api.AbstractFunction
org.h2gis.api.DeterministicScalarFunction
org.h2gis.functions.spatial.mesh.ST_Delaunay
All Implemented Interfaces:
org.h2gis.api.Function, org.h2gis.api.ScalarFunction
public class ST_Delaunay extends org.h2gis.api.DeterministicScalarFunction
Returns polygons that represent a Delaunay triangulation constructed from a collection of points. Note that the triangulation doesn't compute the intersections between lines; it takes only existing coordinates.
Author:
Erwan Bocher

  • Field Summary

    Fields inherited from interface org.h2gis.api.Function

    PROP_NAME, PROP_REMARKS

    Fields inherited from interface org.h2gis.api.ScalarFunction

    PROP_DETERMINISTIC

  • Constructor Summary

    Constructors
    Constructor
    Description
    ST_Delaunay()
     

  • Method Summary

    Modifier and Type
    Method
    Description
    static org.locationtech.jts.geom.GeometryCollection
    createDT(org.locationtech.jts.geom.Geometry geometry)
    Build a delaunay triangulation based on all coordinates of the geometry
    static org.locationtech.jts.geom.GeometryCollection
    createDT(org.locationtech.jts.geom.Geometry geometry, int flag)
    Build a delaunay triangulation based on all coordinates of the geometry
    String
    getJavaStaticMethod()
     

    Methods inherited from class org.h2gis.api.AbstractFunction

    addProperty, getProperty, removeProperty

    Methods inherited from class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

    Methods inherited from interface org.h2gis.api.Function

    getProperty

  • Constructor Details

    • ST_Delaunay

      public ST_Delaunay()

  • Method Details

    • getJavaStaticMethod

      public String getJavaStaticMethod()

    • createDT

      public static org.locationtech.jts.geom.GeometryCollection createDT(org.locationtech.jts.geom.Geometry geometry) throws SQLException
      Build a delaunay triangulation based on all coordinates of the geometry
      Parameters:
      geometry -
      Returns:
      a set of polygons (triangles)
      Throws:
      SQLException

    • createDT

      public static org.locationtech.jts.geom.GeometryCollection createDT(org.locationtech.jts.geom.Geometry geometry, int flag) throws SQLException
      Build a delaunay triangulation based on all coordinates of the geometry
      Parameters:
      geometry -
      flag - for flag=0 (default flag) or a MULTILINESTRING for flag=1
      Returns:
      a set of polygons (triangles)
      Throws:
      SQLException